Background-free, quasi-monoenergetic electron beams from a self-injected laser wakefield accelerator

摘要

Stable 200–400-MeV quasi-monoenergetic electron bunches (ΔE/E<10%), ∼ 10-pC charge, and no dark-current are produced when a self-injected laser plasma accelerator is optimized. PIC simulations demonstrate these beams are produced near the threshold for self-injection.